# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:        Young  
# Name:         test424
# Description:  序列相加
# Author:       asus
# Date:         2019/1/18
#-------------------------------------------------------------------------------


list = [5]
list1 = list*10
print(list1)

list2 = [None]
print(list2[0])
print(list2*10)
# None和空的区别
list3 = []
print(list3[0])